I don't know. But recently I built a butterfly on my phone. I got so hooked up that I forgot to feed my cat.

Those shameless guys from qbcode invented a totally new type of puzzle. It has elegant, deceivingly simple rules; weird I'm-not-sure-if-I-exist and stubborn I'm-not-going-anywhere tiles. To top it all, there are pretty pictures - flowers, dragons, dolphins and so on.

Please avoid this game if you can. I have trouble sleeping now, can't stop thinking about peacocks. What uncanny creatures.